本文介绍的２４例左半结肠癌伴急性完全性结肠梗阻均通过术中结肠减压和灌洗、严格的无菌操作、良好的吻合口对合、术毕扩肛以松弛肛门括约肌等措施，进行一期肿瘤切除和一期结肠吻合，术后无吻合口瘘，无切口感染和腹腔感染。故认为不失为一种既切除肿瘤又解除梗阻的可行性手术方法。 This article describes the 24 cases of left colon cancer with acute complete colonic obstruction by intraoperative colon decompression and lavage, strict aseptic technique, good anastomosis, anal expansion after surgery to relax the anal sphincter and other measures, One stage of tumor resection and one stage of colon anastomosis were performed. There was no anastomotic leakage after operation, no incision infection and abdominal infection. Therefore, it is considered to be a feasible surgical method that not only removes the tumor but also releases the obstruction.